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FILE – In this Aug. 28, 2017, file photo, Illinois Speaker of the House Michael Madigan, D-Chicago, looks out over the floor the Illinois House at the Illinois State Capitol in Springfield, Ill. (Justin L. Fowler/The State Journal-Register via AP, File)

SPRINGFIELD, Ill. (AP) — The U.S. attorney investigating a state government bribery scandal that implicates involvement by the longtime House speaker on Thursday OK’d a separate probe by a House committee.

U.S. Attorney John Lausch said the committee would not interfere with his ongoing investigation as long as it didn’t tie testimony to federal prosecutors’ activities.

The Democratic chairman of the investigating panel says that means limiting testimony to what’s part of public documents in which ComEd admits to trading jobs for favorable legislation from Madigan, who is identified only as House speaker. GOP committee members say Lausch gave the committee much broader sway.